The Effect of Caffeine on Typing Speed, Accuracy and Heart Beat

2663 WordsAug 16, 201311 Pages

The effect of caffeine on typing speed, accuracy and heart beat
1. Introduction
Caffeine is a substance found in coffee, tea and most sodas. When it is consumed, it is a mild stimulant. The energy drink, Monster, contains caffeine, which has the ability to manipulate adenosine (adrenaline), a substance present in the brain that is used to transmit brain signals to different parts of the body. Adenosine causes an increase in alertness and awareness. Modern studies show that there is direct benefits of the so-called “caffeine kick” that is experienced by drinkers.
The behaviour of caffeine acts as a stimulant which increase brain memory. Caffeine belongs to the xanthine chemical group that has an influence on the central nervous…show more content…

Caffeine will continue to have an effect on the body as long as it remains in the blood. The time required for the body to eliminate one-half of the total amount of caffeine consumed (or caffeine's half-life) varies from several hours to several days, but for the average non-smoking adult it is about 3-4 hours.
The health effects of caffeine have been extensively studied. The short term side effects of mild caffeine consumption have been identified as headaches, nausea and anxiety. The long term effects of moderate caffeine consumption have been identified as a reduced risk of developing Parkinson’s disease, type 2 diabetes, hepatic diseases and cardiovascular disease. The side effects that caffeine can have on people are both positive and negative.
• Positive effects - The high long-term consumption of caffeine is associated with a lower risk of cardiovascular disease and diabetes. - Low dosages of caffeine increase alertness and decreased fatigue. - Caffeine is associated with increased attention, concentration, learning and memory.
• Negative effects - Caffeine can increase blood pressure. - Caffeine may reduce control of fine motor movement (e.g. producing shaky hands). - Caffeine can contribute to increased insomnia. - High dosages of caffeine can cause anxiety. - Caffeine is addictive.
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